How to obtain which interrupt take whole CPU

[Коньков Евгений]

Hi

#systat -v
    1 users    Load  0,99  1,03  1,01                  16 окт 18:21

Mem:KB    REAL            VIRTUAL                       VN PAGER   SWAP PAGER
        Tot   Share      Tot    Share    Free           in   out     in   out
Act  141700    4756   426408     6172   82400  count
All  221700    7588  2581596    16556          pages
Proc:                                                            Interrupts
  r   p   d   s   w   Csw  Trp  Sys  Int  Sof  Flt        cow    2122 total
             35      9495   64 1892       11k    1        zfod        atkbd0 1
                                                          ozfod       ata0 14
34,2%Sys  47,3%Intr  3,4%User  0,0%Nice 15,1%Idle        %ozfod       ata1 15
|    |    |    |    |    |    |    |    |    |    |       daefr       sis0 19
=================++++++++++++++++++++++++>                prcfr  2122 cpu0:timer
                                         3 dtbuf          totfr
Namei     Name-cache   Dir-cache     41680 desvn          react
   Calls    hits   %    hits   %     34874 numvn          pdwak
       7       7 100                  9651 frevn          pdpgs
                                                          intrn
Disks   ad0                                        103632 wire
KB/t   0,00                                         63940 act
tps       0                                        247412 inact
MB/s   0,00                                            12 cache
%busy     0                                         82388 free


How to obtain which interrupt take whole CPU?


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